US wheat futures surge to multimonth highs amid geopolitical tensions

US wheat futures surged to multimonth highs on Feb. 27 as escalating geopolitical tensions triggered widespread fund short-covering and added volatility to a market that had been sidelined amid ample global supply.

Chicago soft red winter wheat futures reached year highs for its front-month contract, which settled at 591.25 cents/bushel, while the front-month Kansas City hard red winter wheat contract rose to 572.75 cents/bu, its highest level since June 2025.

MIAX hard red spring wheat futures front-month contract spiked 15.75 cents day over day to 599.25 cents/bu, with the May contract settling 14 cents higher at 612.75 cents/bu, its highest level since July.

The catalyst for the spike was unclear to traders, but tensions between the US and Iran and recent Russian attacks on Odesa, Ukraine, a major grain-export hub, were noted as possible drivers.

"I don't know, honestly," a trader said. "Maybe some Iran headline. Not really sure."

The surge marked a sharp reversal in global wheat markets after a recent lull that happened amid ample global supplies and minimal changes in market fundamentals, creating few hedging opportunities for traders.

"There's no story," a broker said earlier in the week, prior to the rally.

Canadian spring wheat cash basis levels reflected the global lull, seeing minimal movement throughout the week ending Feb. 27 and throughout the trade day until after the market close.

"Same old," a second trader had said earlier in the trading day, referring to basis holding their week-long stability.

However, after the market closed, CWRS wheat cash basis levels were heard 10 cents weaker from Feb. 23. Offer levels were heard at 120 cents/bu over the May (K) MIAX HRS wheat futures, with bids at K plus 115 cents/bu.

Basis could weaken further if futures continue to strengthen March 2, a Canadian exporter said.

Platts, part of S&P Global Energy, assessed Canadian Western Red Spring Wheat 13.5% FOB Vancouver 30-45 days forward at $271.08/metric ton Feb. 27, $5.15 above Feb. 26, before the weaker basis levels were heard following the end of the session.

Looking to the week starting March 2, Aaron Gerdts, principal crop analyst at S&P Global Energy CERA, noted futures were unlikely to strengthen further.

"Prices are near or above the high end of our forecast trading range, so we don't see a lot of further upside at the moment," he added.